Window-lock.



W. D. LUTZ & B. W. SMITH.

WINDOW LOCK.

APPLICATION mso MAY l. 1916.

34,697. Patented Feb. 6, 1917.

l ATTORN EY WILLIAM D. LUTZ, OF ALLENDALE, NEW JERSEY, AND BEVERLY W. SMITH, OF YONKERS, NEW YORK. i

WINDOW-LOCK.

Speciication of Letters Patent.

Patented Feb. 6, 1917.

Application filed May 1, 1916. Serial No. 94,592.

To all whom z may camcom:

Be it known that we, WILLIAM 'D. LU'IZ and BEVERLY W. SMITH, citizens of the United States, residing, respectively, at Allendale, county of Bergen, and State of New Jersey, and at Yonkers, inthe county of Westchester and State of yNew York, have invented new and useful Improvements in Window-Locks, of which the following is a specification.

Our invention relates to window locking devices particularly designed for use on sliding window sashes.

An object of our invention is to provide a simple, practical locking device by which a window may be locked either in closed position or open a short distance as may be desired for ventilation while positively preventing the window from being opened wider from the outside, thereby preventing a person entering the window.

`To this end the locking means may comprise a swinging locking bar which may be mounted at'the inside of the window and have a sliding connection with the window sash permitting the locking bar to assume either a vertical position in which it locks the window sash closed, or the locking bar may be moved to an inclined position allowing the window to be opened a limited distance. The' locking bar may be operable from the inside of the window, when the latter is in a closed position, to disengage it from the window sash and permit the window to be opened'wide.

Other features and advantages of the invention will appear hereinafter.

Referring to the accompanying drawings which illustrate a construction embodying the principles of oua` invention, Figure 1 is a front elevation of a portion of a window with the locking device thereon in position to lock the window closed. Fig. 2 is a part sectional side elevation of the same. Fig. 3 is. a front elevation of the keeper in which the lower end of the locking bar slides. Fig. t is a plan of the same. Figs. 5, 6, 7, and 8 are inner face views of a window with the locking device att-ached, the sashes being in dierent positions. Fig. 5 shows the window closed; Fig. 6 shows the lower sash raised to the extent permitted by the locking bar; Fig. 7 shows the upper sash lowered in like manner; and Fig. 8` shows both the upper and lower sashes opened a short distance.

For the purpose of illustrating the invention, we have shown the locking device attached to Va window comprising an upper sliding sash 10 and a lower sliding sash ll. The locking device may comprise a locking rod or bar 12, the upper end 13 of which is ysecured by screws 17.

The locking bar 12 'at its lower end is provided with means having a. sliding connection with the lower sash 11, permitting the bar to swing from a vertical position (Figs. 1 and 5) in which it locks the window closed, to in inclined position of the bar permitting either sash to be opened a limited distance. Such connecting means comprises a keeper 18 having screwholes 19 so that it may be attached by screws 19 to the sash l1. Said keeper may be substantially rectangular in cross section, forming a channel or guideway in which the end of the bar 12 moves. The upper face of the keeper is formed with a longitudinal slot or guideway -20 through which the bar extends.

The locking bar is held in its keeper 18 by a locking pin 21 extending transversely through a sleeve 22 on the bar 12, said pin being slidable in the keeper 18 and being of greater length than the width of the opening 2O so that the ends ofthe pin extend beyond the side edges of said opening. The sleeve 22 has a sliding connection with the rod 12, the sliding movement of the sleeve being limited by the pin 21which extends throughan elongated opening 23 in the rod. That is to say the rod is made extensible to permit it to be connected to or disconnected lfrom its keeper 18. The end of the slot 20 is widened at 24 'to permit the passage of the'pin 21 when the rod is in a vertical position with said pin at the end of the keeper.

When the window is closed as shown in Fig- 5 it is locked by the bar 12 which positively prevents the window from being opened as the lower end of the bar 12 is directly over and close to the lower sash. A person on the inside may open the window a short distance by sliding the lower end of the bar along its keeper 18 to the position shown in Figs. 6, 7 and 8. The

lower sash may be raised (Fig. 6), the upper sash lowered (Fig. 7),-or both upper and lower sashes may be opened (Fig. 8). rIhe. extent the window may be opened is determined by the end of the locking bar striking the outer end of its keeper 18. rlhe window may of course be left open a less distance, with the locking bar in an intermediate position.

The locking device may be disconnected when the window is closed, by lifting the sleeve 22 to carry the. pin 21 above the keeper, then swinging the locking bar along the keeper until the lower end ot the bar is carried above and tree from the keeper, and then swinging the lower end ot the bar outward away from the window, so that the upper end of theA bar can be slipped out of its socket.

It will be seen that it is impossible for a person on the outside of the window to release the locking bar as it can only be disconnected when the window is fully closed.

Modifications may be resorted to without departing` from the spirit and scope of our invention.

Wha-t we claim is,-

1."The combination with a sliding window sash, of locking means therefor comprising a bar connected to the sash and to a support relatively to which the sash slides, the bar being slidable at one of said connections in a direction transverse to that in which the sash slides :from a position in which it locks the sash closed, to a position permitting the window to be only partly opened, and in which the window is locked by said bar against being further opened, and a stop to prevent the bar from moving beyond said last mentioned position.

2. The combination with a window having upper and lower sliding sashes, of a locking bar pivoted to one sash, means slidably connecting said bar with the other sash, and guiding said bar from an upright position in which the sashes are locked shut thereby, to an inclined position in which a sash is partly open and is locked by said bar against being opened farther, and a stop in the path of the bar to prevent it from moving beyond. said last mentioned position.

8. The combination with a window having upper and lower sliding sashes, of a locking bar pivoted to one sash, a keeper secured to the other sash, said bar having a slidable connection with the keeper from a vertical position in which the sashes are both locked shut by the bar, to an inclined position in which one sash is open a short distance only, said connection providing a stop to prevent the bar from moving beyond said inclined position, whereby the said open sash is locked against being opened farther.

4. rllhe combination with a window having upper and lower sliding sashes, of a locking bar pivoted to oneV sash, a keeper secured to the other sash, said bar having a slidable connection with the keeper from a vertical position in which the sashes are both locked shut by the bar, to an inclined position in which one sash is open a short distance, means to prevent the bar Afrom being disconnected from said keeper while the bar is in an inclined position, the bar being releasable from its keeper when in said vertical position, to permit the sash to'be opened.

5. rl`he combination of a window having upper and lower sliding sashes, of an upright locking bar pivoted at its upper endV to the upper sash and having a horizontal sliding connection at its lower end with the upper horizontal trame-piece of the lower sash, whereby the locking bar is guided to swing about its point of pivotal connection with the upper sash from said upright position to a position in which it is inclined downwardly from its pivot, and a stop to arrest the locking bar at said inclined position and thereby prevent it from swinging to or beyond a horizontal position.

6. The combination of an upper and a lower window sash, a locking bar pivoted to the upper sash and extending downward from its pivot, a horizontal guide plate or keeper attached to the lower sash, and means at the lower end of said bar providing an interlocking sliding connection between the bar and said guide plate, said keeper comprising a stop to arrest the locking bar when it reaches a position in which it is inclined downwardly from its pivot.

7. rl`he combination of an upper and a lower window sash, a locking bar pivoted to the upper sash and extending downward from its pivot, a horizontal guide plate or keeper attached to the lower sash, and means at the lower end of said bar providing an interlocking sliding connection between the bar and said guide plate, said bar movableV from a vertical position in which it locks the window closed, to an inclined position in which the window is open a short distance, and means for disconnecting the bar from the lower sash when the window is closed.

8. A window locking device comprising a locking bar, a keeper in which the end of the bar is slidable, said keeper having a longitudinal slot into which the end of the bar extends, a sleeve mounted on said end of theA bar, and slida-ble lengthwise of the bar, and

a lockinglpin carried by said sleeve to form an interlocking connection between the bar and said keeper.

9. A. window locking device comprising a locking bar, a keeper in which the end ot the bar is slidable, said keeper having a longitudinal slot into which'the end of the bar extends, a sleeve mounted on said end of the bar, and slidable lengthwise of the bar, and

a locking pin carried by said sleeve to form an interlocking connection between the bar and said keeper, said bar having an elongated opening through which said pin eX- tends whereby the sleeve is secured to the bar and permitted a limited sliding movement lengthwise thereof, said slot in the keeper being widened at one point to permit the passage of said pin for connecting or disconnecting the locking bar and its 10 keeper.

10. In a window locking device, a locking bar, a sleeve slidably mounted on the bar, and a looking pin extending transversely through said sleeve and through a slot in said bar, said slot extending longitudinally of said bar to permit a limited sliding movement of the sleeve lengthwise of the bar, said pin extending outwardly beyond the sleeve.

WILLIAM D. LUTZ. BEVERLY W. SMITH.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

